Dozens of Syrian refugees already living in the Unites States may have ties to terrorism and the Department of Homeland Security (DHS) is downplaying it, claiming federal agents missed “possible derogatory information” about the immigrants due to “a lapse in vetting.” Among those who slipped through the cracks is a man who failed a polygraph test after applying to work at a U.S. military installation and another who communicated with an Islamic State leader.

Information about this scandalous security lapse comes from federal agents with firsthand knowledge of the situation. They spoke to a mainstream newspaper on condition of anonymity, as many Judicial Watch sources who expose delicate information do, out of fear. This is the type of case the government works hard to keep quiet and consequences could be serious for those who blow the whistle. The news article reveals that federal agents are now “reinvestigating the backgrounds” of the dozens of Syrian refugees because somehow DHS discovered that the lapse in vetting allowed refugees with “potentially negative information in their files to enter the country.” The newspaper attributes the information to “U.S law enforcement officials” who were not authorized to discuss the matter.

Coincidentally, on the day this story broke a national newswire service reported that President Donald Trump drafted an executive order to stop accepting Syrian refugees. The president also plans to suspend issuing visas for citizens of seven predominantly Muslim countries—Iran, Iraq, Libya, Somalia, Sudan, Syria and Yemen. Under President Barrack Obama’s lax immigration policies, large numbers of terrorists from some of these nations entered the U.S., including members of ISIS and other radical Islamic groups. They include individuals who have engaged in or attempted to engage in acts of terrorism, conspired or attempted to conspire to provide material support to a terrorist organization or engaged in criminal conduct inspired by terrorist ideology. Some have been convicted and sentenced in American courts.

Additionally, the Obama administration was very generous in granting citizens of Muslim nations special amnesty protections and residency benefits in the U.S. During a five-year period, Obama’s DHS issued around 680,000 green cards to foreigners from Muslim countries, according to the agency’s figures. Somalia, Yemen, Syria and Libya were among the nations. In 2015 Judicial Watch reported on a special “humanitarian” amnesty program offered to illegal aliens from Yemen, an Islamic Middle Eastern country well known as an Al Qaeda breeding ground. Yemen is the headquarters of Al Qaeda in the Arabian Peninsula (AQAP) and the State Department has revealed that AQAP militants carried out hundreds of attacks including suicide bombers, vehicle-borne improvised explosive devices (VBIEDs), ambushes, kidnappings and targeted assassinations.

Circling back to Syrian refugees, as Obama let thousands settle in the U.S. his own intelligence and immigration officials admitted that individuals with ties to terrorist groups used the program to try to infiltrate the country and that there is no way to properly screen them. In 2015 the Office of the Director of National Intelligence (ODNI) confirmed that individuals with ties to terrorist groups in Syria tried to gain entry to the U.S. through the refugee program and that the program is “vulnerable to exploitation from extremist groups seeking to send operatives to the West.” Before that the director of U.S. Citizenship and Immigration Services (USCIS), Matthew Emrich, admitted during a congressional hearing that there’s no way to adequately screen Syrian refugees because the Syrian government doesn’t have an intelligence database to run checks against. Additionally, FBI Assistant Director Michael Steinbach conceded that the U.S. government has no system to properly screen Syrian refugees.